Automatic pipe machine



Sept. 7, 1954 H. BERKEY ETAL 2,688,144

\ AUTOMATIC PIPE MACHINE 1 Filed May 13, 1947 l9 Sheets-Sheet l HARRY L.BERKEY GEORGE E. H EBER W mwxw Sept, 7, 1954 H. 1.. BERKEY ET 2,683,144

AUTOMATIC PIPE MACHINE Filed May 15, 1947 19 Sheets-Sheet 2 BMW HARRY L.BERKEY GEORGE E. HIEBER Sept. 7, 1954 H. L. BERKEY ET AUTOMATIC PIPEMACHINE 19 Sheets-Sheet 3 Filed May 13, 1947 m t 0 11 0 O O .MW ll. O n6T M O O O 8 3 0 w 3.. 0mm 31: o f 0 a o I O m o J o mm 3 in O 3.

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AUTOMATIC PIPE MACHINE Filed May 13, 1947 19 Sheets-Sheet '7 HARRY L.BERKEY GEORGE E. HIEBER WM Yaw Sept. 7, 1954 H. BERKEY ETAL 2,688,144

AUTOMATIC PIPE MACHINE Filed May 13, 1947 19 Sheets-Sheet 8 J 1 llil llH Y I 3mm HARRY BERKEY GEORGE HIEBER mwxl "Sept. 7, 1954 H. 1.. BERKEYET L 2,588,144

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AUTOMATIC PIPE MACHINE Filed May 13, 1947 19 Sheets-Sheet 1e 1 EEE HARRYL. BERKEY GEORGE E. HIEBER MRMEWM W and the machining operationproceeds.

Patented Sept. 7, 1954 UNITED STA'ilELii AUTOMATIC PIPE MACHINE Harry L.Berkey and George E. Hieher, Waynesboro, Pa., assignors to LandisMachine Company, Waynesboro, Pa., a corporation of PennsylvaniaApplication May 13, 1947, Serial No. 747,756

14 Claims.

This invention relates to automatic machines for performing machiningoperations on the ends of pipes, tubes, and the like. More specifically,the invention comprehends the automatic and positive manipulation of apipe from the blank to the completely machined product, each end thereofbeing machined by a separate unit of the combined machine.

Machines of the prior art, such as that shown in U. S. Patent No.2,210,531 to Engelbaugh et al., consist of a machining unit disposed tooperate upon each end of the pipe and a transfer table thcrebetween tocause the pipe to move laterally from one machining unit to the otherand axially into and out of the proper position for performing themachining operation.

In such machines, the pipe is moved laterally onto a series of rollsaligned with the pipe-holding chuck. Rotation of these rolls then movethe pipe longitudinally through the chuck into contact with a work stop.The chuck is then closed At the completion of the machining operation,the chuck is opened, the direction of rotation of the rolls is reversedand the pipe is moved axially out of the chuck.

In a machine of the type shown in U. S. Patent No. 2,405,141 to Hibbardthe pipes are moved longitudinally and then transversely towards thechuck, but the transverse movement includes a vertical travel, and apipe cannot begin this vertical travel until the preceding pipe isremoved out of the way after being machined. In this machine the pipesare not positively moved from one station to another, but travel underthe infiuence of gravity.

The present invention marks an important advance over the prior art byeliminating several of the above steps to reduce the time required forthe actual handling of the pipe to a fraction of the time formerlyrequired. This is especially true for the shorter lengths of pipe whichmust necessarily travel farther when moving axially from one machine tothe other.

It is therefore a principal object of the invention to provide a machineof the above general character having an improved and positive method ofautomatic control.

It is another major object to provide such a machine in which the lengthof the pipe to be machined has no effect upon the time required tocomplete a machining cycle.

A. further object of the invention is to provide an improved system ofindexing the pipe laterally into alignment with the machining units.

Another object is to provide a system for accomplishing the axialtransfer of the pipe while the machining units are employed on otherpipes, thus effecting a major saving of time.

A still further object is to provide a chuck mechanism into which thework may be carried laterally which may be accomplished much morequickly than the act of pushing the work through the chuck axially.

Another object is the provision of an electrohydraulic control circuitwhich integrates the several units of the machine into one completewhole in which each operation of the machining operation is performedsequentially. Thus positive control is secured, since no singleoperation can begin before the preceding operation has been completed,regardless of accidental delay from any cause.

Still. another object of the invention is the provision of a machinewhich will, with a minimum of change, perform any desired operation uponeither or both ends of the pipe. This feature is especially desirable inthe case of such work as upset tubing, which is threaded externally atone end and internally at the other.

Other objects and advantages of the invention will be apparent from thefollowing description of the exemplified embodiment illustrated in theaccompanying drawings in which:

Figure l is a top plan view of the complete machine.

Figure 2 is a side elevation of one of the machining units arranged as athreading machine;

Figure 3 is a rear end elevation of the same machine as in Figure 2;

Figure 4 is a front end elevation of the same machine;

Figure 5 is a side elevation of one of the machining units arranged as areaming and facing machine;

Figure 6 is a vertical longitudinal sectional View through the spindleof the central portion of the machine shown in Figure 2.

Figure '7 is a transverse vertical sectional view along line 'll ofFigure Figure 8 is a fragmentary vertical sectional view along line 8-8of Figure 6;

Figure 9 is a fragmentary horizontal sectional View taken. along line9-9 of Figure 6;

Figure 10 is a horizontal sectional view taken substantially along lineNi -ill of Figure 6;

Figure 11 is a vertical longitudinal sectional view through the spindleof the machine shown in Figure 5;

Figure 12 is a vertical sectional view showing the gripper mechanism andtaken substantially along line E ?.i2 of Figure 2;

Figure 13 is a vertical sectional view taken substantially along lineiii-l3 of Figure 12;

Figure 1a is a top plan view of one of the pedestals for supporting thetransfer mechanism, the particular pedestal shown being the one in theupper right hand corner of Figure 1;

Figure 15 is a side elevation of the pedestal shown in Figure 14;

